Clarence w



Get. 2, 1923.

C. W. NEUP E RT PUMP Filed Dec. 8,

Patented Oct. 2, 1923.

CLARENCE w. manner,

05 BUFFALO, NEW YORK.

PUMP.

Application filed December State oi New York, have invented newand useful Improvements in, Pumps, oil which the following is a specification.

The object of this invention is the productiou oi a pump which is more particularly designed for use in i orcibly circulating the water in the engine cooling system of an automobile and to acccn'uplish this by means which are simple in constniction efiicient in operation and not likely to become clogged or not out oi order.

In the accompanying drawings:

Ficure 1 a perspective View of my improved water circulating put interposed between the radiator and or i oi? an automobile. Figure 2 is a vertical lei itudinal section of the pump, on an enlarged scale. Figure is a cross section taken on line 3-3, Fig. 2.

Similar characters of reference refer to like parts throughout the several views.

10 represents the water acket o'l an autoiobile gas engine and 11 a radiator arrauoed in "front oi the engine and ltiavingz its upper part provided with an inlet 1 which is connected by a tube 13 with the outlet in the upper part of the engine water iaclrct. My improved pump is interposed between the outlet 14 at the lower end of the radiator and the inlet 15 in the lower part of the water jacket and is constructed follows: 16 represents the cylindrical wall or body of the impeller chamber 17 which is provided at its front end with an integral head 18 and at its rear end with a removable head 19 which is detachably connected therewith by screws 20. -On its inner sidethe wall of the impeller chamber is provided with a- 8, 1921. Serial No. 520,950.

ts "front and rear ends with bearings 28, 29

ubular bracket is embraced by a collar 31 which is secured thereto by a set screw 32, the collar being provided on its inner side with a foot or brace 33 having a cam face 84 engaging with the adjacent part of the water iackct so that by turning this brace the pump casingmay )0 held rigidly relatively to the engine.

419 represents the pump shaft which is arranged lengthwise in the tubular bracket and journalcd in the bearings therein. The outer or front end of this shaft is provided with a driven pulley which receives a driving belt 36 the latter also passing around the pulley 37 of the air fan 38 arranged in rear of the radiator and also around the driving pulley arranged on the shaft of the gas engine in the usual manner.

lVithin the impeller chamber is arranged a rotary impeller whereby the water is dravm from the inlet at the rear end of the chamber into the latter and then expelled through its outlet in the side thereof. This impeller comprises a rotary disk 40 'iccnt to the front head of the i V ciiambcr and detachably connected vith the pump shaft by an externally screw threaiilcd shank 41 at the rear end of the pump shaft engaging with an internally threaded. hub 42 on the impeller disk. The im 'ielll-r al o comprises a plurality of longitudinal impeller blades 43 which are arranged in an annular row and are connected at their front ends with the impeller disk while their rear ends are free and arran ed close to and arou .d the inlet 24:. this means the water is able to pass freely from the inlet of the impeller chamber into the central part of the latter from which the same is discharged by the impeller lilades thro e h the outlet in the side of: the chamber without liability of the chamber or impeller obstructing the path of the water and without danger of the same becoming clogged by foreign matter.

\,,wing to the water entering the impeller chamber centrally through its rear head the impeller blades which at its ends are free to produce a power suction effect on the central part of the chamber for drawing the stream ofwater through the inlet and then forcibly discharging the same at the periphery of the chamber by thecentrii'ugal;

force of the blades, thus insuring a-rapid and forcible circulation of the water and keeping the engine in a suitably cooled condition.

Furthermore, this co struction oi pump is capable of installation on engines now in common use without requiring any alterations or encroaching upon any space now required for other purposes.

Moreover, this pump can bebuilt and installed at comparatively low cost and owing to the small amount of power required for its operation, the eiliciency oi the automobile is not lowered.

I claim as my invention:

A pump comprisinga cylindrical impeller chamber provided at one end with a fixed head, a tubular bracket arranged on said fixed head and having an inner stationary said, bracket and ournaled in said'stationary bearings and connected with said impeller, and a separate head detachably connected with the other end of said chamber and having an angular end inlet which extends front said separate head laterally and then lengthwise of the chamber and along the outer side thereof in the same direction in which said bracket extends from said stationary head, said shaft being wholly out of engagement with said detachable head and sup-c ported solely by said hearings on the bracket. 

